Method of sticking up sheets



Patented Mar. 13, 1923.

fLErROY. LATHAM,"OF PLANDOME. AND JOSEPH CAGGIANO, or NEW'YORK, N. Y.; SAID 'GAGGLANO ASSIG'NOR. TO SAID ATHAM.

fMETI-IOD-DF STICKING 'UP No Drawing.

To all whom it mag concern Be it known that we, LE'IROY ,LATHAM and JOSEPH CAGGIANO, residing, res metiyely, in Plandome, zin the countyof Nassau and State of New York and .at; the city, county, and State of New York-have jointlyinvented a certain new and useful improvement inMethodsoftsticking Up-Sheets, of which improvementthe.following is a specification.

.This invention. relates I to the. art aof sticking up sheets, such as posting bills, hanging wall paper, or other similar sheets, and more particularlyio lithographic and other billboardposters that are. displayed out of doors Where they are subject to rain and weather. Heretofore the practice has been to stick the sheets, such as posters, upon the boards or walls with a flour paste, which is applied to the board and to the face of the poster with a large brush, the paste being streaked over the face of the poster, often marring the appearance and making it indistinct. When the paste is dried on the poster it is liable to peel off, taking with it some of the lithograph colors, and when it is wet by a rain, the. adhesion is impaired, so that the posters often become torn or come ofi' entirely.

The object of our invention is to overcome these disadvantages, and to provide an improved method whereby the paper sheets may be coated with a suitable glue, which, when moistened and finally applied to the board, wall or other support and. dried, shall be substantially waterproof.

In order that the sheets of paper or other material, as prepared with the dry coating of glue, may be readily folded, handled, and shipped, it is important that they should be soft, pliable and moist, without sticking or cracking, and also that the glue should be readily soluble, so as to stick to the board or wall promptly when moistened for that purpose.

A suitable glue for this purpose may comprise a base of animal glue, gum arabic and casein, with small amounts of glycerine, starch, and oil added to produce the desired pliability, and prevent the sheets from sticking together. Our invention, however, is not limited tothis particular composition of glue, since various substitutes of ingredients may be made; for instance, other glue for animal glue, gelatine for the casein,

Application filedwctooer. 3, 1921. Seria1 1\To.:505,178.

resin dissolved with alkali hydroxides for the gum arabic,certain chlorides fontheigliycerine, etc.

According-to ,our improvement,; the sheets are coated with the .glue by-Ineans of. a suit able: machine and then dried.- This may be done either before or ,after the sheets are subjected to the lithographic or othergprintmg. The sheets may thenibe folded .;or rolled and. Shipped to gany 1 point where they are to be posted or hung. While the glue must be of: such composition'a's: to, be readily soluble, andstick, to theboard .orwall, when moistened for. this purpose, ,it must: also be substantially waterproof when. finally dried, and in order to accomplish this result, a chemical is applied, either to the sheet, or to the water at the time of wetting and stlcking up the sheet, which chemical shall have the desired reaction with the glue to make the same insoluble andsubstantially waterproof when dried.

While various chemicals may be employed for this purpose, we prefer to use formaldehyde introduced into the water for moistening the sheets when posting, about four ounces of formaldehyde to a gallon of water being sufficient.

By this method the sheets may be readily posted upon the boards by the bill poster who simply applies the formaldehyde to the water, to prepare the solution for wetting his brush, then rubbing the'brush over the board for wetting the same, then applying the sheet with its coating of glue to the board, and rubbing the brush over the face of the poster in the same manner as heretofore customary in sticking up posters with flour paste. The solution of water and formaldehyde or other chemical is transparent, and does not injure or obscure the lithograph printing, but it has the desired effect of rendering the glue insoluble and waterproof when dried upon the board. The bills thus posted are unaffected by rain and remain securely Stuck upon the boards for a long period.

In the case of wall paper, the sheets maybe coated with the glue and then dried in the same manner as with posters. At the time of hanging the sheets upon the wall, the glue surface is first moistened with the solution of formaldehyde in water, which renders the glue insoluble when dried upon the wall, This wi l prevent the loosening of the wall paper even if the wall should become damp or wet.

It will be obvious that the glued surface of the sheets may be moistened with the formaldehyde or other solution at the time of hanging or posting the sheet, either by wetting the glue side of the sheet directly with the brush, or by first wetting the board or wall and then applying the sheet to it.

Having now described our invention, what We claim as new and desire to secure by Letters Patent, is:

1. The method of sticking up sheets, which consists in coating the sheet with a soluble glue and drying the same, then at the time of sticking up the sheet moistening same with a solution rendering the glue insoluble in water when dried.

2. The method or sticking up sheets, which consists in coating the sheet with a glue comprising an animal glue, gum arabic and casein, and drying the same, then at the time of sticking up the sheet, moistening the same with a solution rendering the glue insoluble in water when dried.

eesnee 3. The method of sticking up sheets, which consists in coating the sheet with a soluble glue and drying the same, then at the time of sticking up the sheet, moistening the same with a solution of formaldehyde in water.

4. The method of sticking up sheets, which consists in coating the sheet with a glue comprising an animal glue, gum arabic, and

casein, and drying the same, then at the time of sticking up the sheet, moistening the same with a solution of formaldehyde in water. 4

5. The method of sticking up sheets,which consists in coating the sheet with a glue comprising an animal glue, gum arabic, casein, glycerine, and oil, and drying the same, then at the time of sticking up the sheet moistening the same with a solution of formaldehyde in water.

In testimony whereof we have hereunto set our hands.

LE ROY LATHAM. JOSEPH CAGGIANO. 

